vf_multiply.c File Reference

#include "libavutil/imgutils.h"
#include "libavutil/pixdesc.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"
#include "framesync.h"

Go to the source code of this file.

Data Structures
struct	MultiplyContext
struct	ThreadData
	Used for passing data between threads. More...

Macros
#define	OFFSET(x)   offsetof(MultiplyContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Functions
static int	config_input (AVFilterLink *inlink)
static void	multiply (const uint8_t *ssrc, const uint8_t *rref, uint8_t *ddst, float scale, float offset, int w)
static int	multiply_slice (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	process_frame (FFFrameSync *fs)
static int	config_output (AVFilterLink *outlink)
static int	activate (AVFilterContext *ctx)
static av_cold void	uninit (AVFilterContext *ctx)
	AVFILTER_DEFINE_CLASS (multiply)

Variables
static const AVOption	multiply_options []
static enum AVPixelFormat	pix_fmts []
static const AVFilterPad	multiply_inputs []
static const AVFilterPad	multiply_outputs []
const AVFilter	ff_vf_multiply

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(MultiplyContext, x)

Definition at line 43 of file vf_multiply.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 44 of file vf_multiply.c.

Function Documentation

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 62 of file vf_multiply.c.

multiply()

static void multiply ( const uint8_t *  ssrc, const uint8_t *  rref, uint8_t *  ddst, float  scale, float  offset, int  w  )

static

Definition at line 75 of file vf_multiply.c.

Referenced by multiply_slice().

multiply_slice()

static int multiply_slice ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 89 of file vf_multiply.c.

Referenced by process_frame().

process_frame()

static int process_frame ( FFFrameSync *  fs )

static

Definition at line 126 of file vf_multiply.c.

Referenced by config_output().

config_output()

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 162 of file vf_multiply.c.

activate()

static int activate ( AVFilterContext *  ctx )

static

Definition at line 206 of file vf_multiply.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 212 of file vf_multiply.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

multiply

)

Variable Documentation

multiply_options

const AVOption multiply_options[]

static

Initial value:

= {
    { "scale",  "set scale",  OFFSET(scale),  AV_OPT_TYPE_FLOAT, {.dbl=1},     0., 9., FLAGS },
    { "offset", "set offset", OFFSET(offset), AV_OPT_TYPE_FLOAT, {.dbl=0.5},  -1., 1., FLAGS },
    { "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_FLAGS, {.i64=0xF},   0., 0xF, FLAGS },
    { NULL }
}

Definition at line 50 of file vf_multiply.c.

pix_fmts

enum AVPixelFormat pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_GBRPF32, AV_PIX_FMT_GBRAPF32,
    AV_PIX_FMT_NONE
}

Definition at line 57 of file vf_multiply.c.

multiply_inputs

const AVFilterPad multiply_inputs[]

static

Initial value:

= {
    {
        .name         = "source",
        .type         = AVMEDIA_TYPE_VIDEO,
        .config_props = config_input,
    },
    {
        .name         = "factor",
        .type         = AVMEDIA_TYPE_VIDEO,
    },
}

Definition at line 219 of file vf_multiply.c.

multiply_outputs

const AVFilterPad multiply_outputs[]

static

Initial value:

= {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_VIDEO,
        .config_props  = config_output,
    },
}

Definition at line 231 of file vf_multiply.c.

ff_vf_multiply

const AVFilter ff_vf_multiply

Initial value:

= {
    .name          = "multiply",
    .description   = NULL_IF_CONFIG_SMALL("Multiply first video stream with second video stream."),
    .priv_class    = &multiply_class,
    .priv_size     = sizeof(MultiplyContext),
    .uninit        = uninit,
    .activate      = activate,
    FILTER_INPUTS(multiply_inputs),
    FILTER_OUTPUTS(multiply_outputs),
    FILTER_PIXFMTS_ARRAY(pix_fmts),
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
    .process_command = ff_filter_process_command,
}

Definition at line 241 of file vf_multiply.c.